tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing head: d143d2c76ed6b02cca4a366cb1ed8549c5fc2a32 commit: d143d2c76ed6b02cca4a366cb1ed8549c5fc2a32 [66/66] usb: gadget: u_audio.c: Adding Playback Pitch ctl for sync playback config: nios2-allyesconfig (attached as .config) compiler: nios2-linux-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/commit/?id=d143d2c76ed6b02cca4a366cb1ed8549c5fc2a32 git remote add usb https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git git fetch --no-tags usb usb-testing git checkout d143d2c76ed6b02cca4a366cb1ed8549c5fc2a32 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/usb/gadget/function/u_audio.c: In function 'u_audio_start_playback': >> drivers/usb/gadget/function/u_audio.c:589:45: error: variable 'p_pktsize_residue' set but not used [-Werror=unused-but-set-variable] 589 | unsigned int p_interval, p_pktsize, p_pktsize_residue; | ^~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +/p_pktsize_residue +589 drivers/usb/gadget/function/u_audio.c 576 577 int u_audio_start_playback(struct g_audio *audio_dev) 578 { 579 struct snd_uac_chip *uac = audio_dev->uac; 580 struct usb_gadget *gadget = audio_dev->gadget; 581 struct device *dev = &gadget->dev; 582 struct usb_request *req; 583 struct usb_ep *ep; 584 struct uac_rtd_params *prm; 585 struct uac_params *params = &audio_dev->params; 586 unsigned int factor; 587 const struct usb_endpoint_descriptor *ep_desc; 588 int req_len, i; > 589 unsigned int p_interval, p_pktsize, p_pktsize_residue; 590 591 ep = audio_dev->in_ep; 592 prm = &uac->p_prm; 593 config_ep_by_speed(gadget, &audio_dev->func, ep); 594 595 ep_desc = ep->desc; 596 /* 597 * Always start with original frequency 598 */ 599 prm->pitch = 1000000; 600 601 /* pre-calculate the playback endpoint's interval */ 602 if (gadget->speed == USB_SPEED_FULL) 603 factor = 1000; 604 else 605 factor = 8000; 606 607 /* pre-compute some values for iso_complete() */ 608 uac->p_framesize = params->p_ssize * 609 num_channels(params->p_chmask); 610 p_interval = factor / (1 << (ep_desc->bInterval - 1)); 611 uac->p_interval_mil = (unsigned long long) p_interval * 1000000; 612 p_pktsize = min_t(unsigned int, 613 uac->p_framesize * 614 (params->p_srate / p_interval), 615 ep->maxpacket); 616 617 if (p_pktsize < ep->maxpacket) 618 p_pktsize_residue = uac->p_framesize * 619 (params->p_srate % p_interval); 620 else 621 p_pktsize_residue = 0; 622 623 req_len = p_pktsize; 624 uac->p_residue_mil = 0; 625 626 prm->ep_enabled = true; 627 usb_ep_enable(ep); 628 629 for (i = 0; i < params->req_number; i++) { 630 if (!prm->reqs[i]) { 631 req = usb_ep_alloc_request(ep, GFP_ATOMIC); 632 if (req == NULL) 633 return -ENOMEM; 634 635 prm->reqs[i] = req; 636 637 req->zero = 0; 638 req->context = prm; 639 req->length = req_len; 640 req->complete = u_audio_iso_complete; 641 req->buf = prm->rbuf + i * ep->maxpacket; 642 } 643 644 if (usb_ep_queue(ep, prm->reqs[i], GFP_ATOMIC)) 645 dev_err(dev, "%s:%d Error!\n", __func__, __LINE__); 646 } 647 648 return 0; 649 } 650 EXPORT_SYMBOL_GPL(u_audio_start_playback); 651 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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